I interpret the phrase “vSphere 5.0 or later” to mean any version of vSphere that became generally available after version 5.0 became generally available. And since vSphere 5.1 was release after (later than) version 5.0, VMware View 5.1 or 5.1.1 would be supported to run on vSphere 5.1.

It would be nice if VMware didn’t release conflicting information, or at least would avoid using the phrase “or later” when documenting compatibility. I’ll just have to wait for either an upgrade to VMware View or an upgrade to VMware vSphere for the two solutions to be compatible with each other once again.